I seek to tunnel one SSL VPN (F5, running on my debian laptop==client) through another (OpenVPN, running on a debian linode==server), but lose all client networking (including, e.g., ping) after the ...

I have two ubuntu 12.04 32 Bit PCs between which I want IPSec Tunnel to be setup. I have setup ipsec in both systems and ipsec verify runs fine on both. Since I have no prior experience of openswan, I ...

I have a server running on which from many different places people log on via ssh and open remote ssh-tunnels to other places behind different firewalls.
Now I want to try to get an overview, which ...

I need bridged TAP interface on client side of my VPN to virtual machine. I use VirtualBox 4.3.12.
But in Adapter Network options in Attached to: Bridged adapter I do not see my TUN adapter.
I have ...

Our server solution handles many tunnel operation requests (add/update/delete) using the ioctl interface, and the AF_INET address family socket. Aprox. numbers are 100 operations/minute with over 8k ...

I'm trying to reach my ssh server (i'm behind a corporate proxy) so I tried to use Corkscrew.
My ssh server is listening on port 443, I put sshd: ALL in my /etc/hosts.allow and there's nothing into my ...

I am running on Linux 2.6.30.9 and have been trying to setup a transparent ethernet over GRE tunnel. The network topology used is as follows:
I want to bridge PC1 and PC2 using Transparent Ethernet ...

I have a socks5 proxy that is bind to eth0. It opens two ports, Port1 is used to connect to remote (for example a http server), Port2 is to listen for clients to connect.
Then I created a tun device. ...

I have been reading on how to reverse tunnel and I am using this command:
ssh -f -N -T -R25565:localhost:25565 dns.mindfulhacker.tk
To forward my Minecraft server. My other server can connect to my ...

I noticed when running ifconfig that there is a network interface called tun0 and it has an ipv4 address. A bit of research shows that it is a tunneling device, but I don't really know how it's used, ...

I have a server which has only access to the outer world via port 22 (for the use of ssh from the server to other computers).
I want to install some packages via apt-get on this server.
Can I achive ...

I'm trying to get internet to a Linux VM (Backtrack 5 on VMWare Workstation). Unfortunately I was told to not "bridge" the connection from the VM because it could be detected by our companies network ...

I wanted to know if it was possible to have a server running OpenVPN with server key and have multiple clients connect to it?
I would like the server to be 10.9.8.1, the first client to be 10.9.8.2 ...

I have a question about SSH/Port forwarding. I haven't found the solution anywhere and don't know if there is any.
I have a server behind my NAT box at home. I have port forwarding from my NAT box to ...

I created a TUN device(nat64) and created a route so that all the required packets are forwarded to the TUN device from an eth device. But, I see that many packets are not received by the TUN device.
...

I've installed OpenVPN on a client (behind NAT-Router) and a VPS server. The tunnel is established. However, ping is only possible from client to server. The server uses its public IP address on tun0 ...

Is there any way to list the tunnels that SSH clients connected to my OpenSSH server have set up?
I can use e.g. lsof -i to show connections that are being actively tunnelled, but I'd like to be able ...

A program injects packets on a Linux TAP interface (these packets are coming from a virtual machine). Specifically, these are DHCP requests (so they're UDP). I can see the packets with tcpdump but not ...

I have a development server, which is only accessible from 127.0.0.1:8000, not 192.168.1.x:8000. As a quick hack, is there a way to set up something to listen on another port (say, 8001) so that from ...

I recently discovered the existence of Linux TUN/TAP interfaces and am still trying to understand them. I think I get the basic concept - pseudo devices are created which emulate a network interface ...

There are certain websites/services which I can only access from the subnet on which my server is located (think of the typical intranet scenario). Is there a way to transparently route traffic that ...